Home / 1,240,012.31-1,858,286.48-670,165.16

Finding the Fourth Proportional to 1,240,012.31, 1,858,286.48 and 670,165.16

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Solution

The fourth proportional to 1,240,012.31, 1,858,286.48 and 670,165.16 is: 1,004,311.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,012.31 : 1,858,286.48 = 670,165.16 : x
  2. Step 2: Convert to fraction form
    1,240,012.31/1,858,286.48 = 670,165.16/x
  3. Step 3: Cross multiply
    1,240,012.31x = 1,858,286.48 × 670,165.16
  4. Step 4: Simplify right side
    1,240,012.31x = 1,245,358,843,552.78
  5. Step 5: Solve for x
    x = 1,245,358,843,552.78/1,240,012.31
  6. Step 6: Final answer
    x = 1,004,311.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.